My Inquiry
My Account
Semtech Corporation SLVG2.8.TCT
- Part No.:
- SLVG2.8.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
SLVG2.8.TCT.pdf
- Description:
- TVS DIODE 2.8VWM 15VC SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SLVG2.8.TCT from Semtech is a unidirectional EPD TVS diode in SOT-143 package, designed for ESD and latch-up protection of low-voltage data lines. It features 2.8V working voltage (VRWM), 15kV air-gap ESD immunity per IEC 61000-4-2 Level 4, 300W peak pulse power (8/20μs), clamping voltage of 14V at 1A, and junction capacitance of 5pF at 0V. It protects one unidirectional line in common-mode configuration.
For engineers reviewing the SLVG2.8.TCT datasheet, pinout, applications, or equivalent options, this device is selected for high-speed interface protection where low clamping voltage, minimal parasitic capacitance, and robust IEC-compliant surge handling are required - especially in Ethernet transceivers, laser diodes, and portable instrumentation.
Technical Context
The SLVG2.8.TCT uses Semtech's proprietary EPD (Electrostatic Protection Device) process, based on an nppn structure that enables punch-through conduction instead of avalanche breakdown. This yields low leakage (<1μA at VRWM), low capacitance (5pF), and stable clamping behavior below 5V operation.
It operates as a single-line unidirectional protector with pins 2 and 3 connected to the protected line and pins 1 and 4 tied to ground. Its "flow-thru" layout minimizes trace inductance, reducing voltage overshoot during fast ESD transients (tr = 8μs).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 2.8V - defines maximum continuous reverse operating voltage before conduction begins; matches 3.3V I/O rail margin. |
| Peak Pulse Power (Ppk) | 300W (8/20μs) - sustains transient energy without failure during lightning or EFT surges per IEC 61000-4-5. |
| Clamping Voltage (VC) | 14V at 1A - limits voltage seen by protected IC during ESD event; ensures stress stays below typical 16V I/O absolute max. |
| Junction Capacitance (Cj) | 5pF at 0V - preserves signal integrity on high-speed lines (e.g., USB 2.0, LVDS) with negligible loading. |
| ESD Withstand (IEC 61000-4-2) | ±15kV air, ±8kV contact - exceeds Level 4 requirements, enabling robust front-end port protection. |
| Leakage Current (IR) | <1μA at 2.8V - avoids DC bias shift or power drain in battery-powered systems. |
Pinout & Package
SLVG2.8.TCT is housed in a JEDEC-standard SOT-143 package (3.0 × 1.4 × 1.0 mm), UL 94V-0 rated molding compound, tape-and-reel packaging (7-inch reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground | Low-inductance return path to PCB ground plane; must be routed directly to solid ground layer. |
| Pin 2 | Anode (Protected Line Input) | Connects to unidirectional signal line upstream of protected IC; forms primary current path during ESD. |
| Pin 3 | Cathode (Protected Line Output) | Connects to same signal line downstream; completes flow-thru path minimizing loop inductance. |
| Pin 4 | Ground | Second ground terminal for symmetric layout; reduces impedance imbalance and improves common-mode rejection. |
Key Features
| Feature | Design Value |
|---|---|
| EPD Process Technology | Enables stable 2.8V operation with sub-1μA leakage and 5pF capacitance - impractical with conventional silicon-avalanche TVS. |
| Flow-Thru Pin Configuration | Pins 2–3 in series along signal path reduce parasitic inductance, limiting voltage overshoot during 8/20μs transients. |
| IEC 61000-4-2 Level 4 Compliance | Guarantees survivability against ±15kV air and ±8kV contact ESD - eliminates need for secondary board-level filtering. |
| SOT-143 Mechanical Compatibility | Standardized footprint allows drop-in replacement in space-constrained designs; supports automated pick-and-place assembly. |
Applications
| Ethernet Transceiver Protection | Laser Diode Interface Protection |
|---|---|
Use Scenario: Protecting 10/100BASE-TX PHY differential pairs from ESD events at RJ-45 connector entry points. IC Role / Device Role / Timing Role: Unidirectional TVS placed on each TX+/TX− line to clamp transients before reaching PHY input stage. Use Value: Prevents latch-up and gate oxide damage in CMOS PHYs while maintaining <5pF loading for signal integrity up to 125MHz. |
Use Scenario: Safeguarding laser diode driver outputs from user-handling ESD during hot-plug or cable insertion. IC Role / Device Role / Timing Role: Placed between driver output and LD anode/cathode to absorb fast-rising ESD pulses without affecting modulation bandwidth. Use Value: Enables reliable operation under ±8kV contact discharge while preserving <1ns rise-time response critical for digital modulation. |
| Portable Instrumentation I/O | WAN/LAN Equipment Serial Interfaces |
Use Scenario: Shielding UART, SPI, or I²C lines on handheld test equipment exposed to field ESD during probe connection. IC Role / Device Role / Timing Role: Single-line protection on bidirectional or unidirectional control/data lines interfacing external sensors or modules. Use Value: Maintains low standby current (<1μA) and avoids signal distortion on 1–10MHz serial buses due to 5pF capacitance. |
Use Scenario: Protecting RS-232/RS-485 transceiver pins in enterprise routers and switches subjected to repeated connector mating cycles. IC Role / Device Role / Timing Role: Common-mode TVS on driver/receiver signal paths to suppress coupled surges from adjacent cables or chassis discharge. Use Value: Delivers 300W surge handling (8/20μs) without derating at 85°C ambient, supporting industrial temperature-grade deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLVE2.8.TCT | Bidirectional; symmetrical clamping (VC = 14V @ ±1A); supports differential or common-mode dual-line protection. | Required where signal polarity reverses (e.g., USB D+/D−, RS-485 A/B) or bidirectional data lines need shared protection. | Select SLVE2.8.TCT only when protecting bidirectional interfaces; SLVG2.8.TCT is not interchangeable due to asymmetry. |
| SMAJ2.8A | Standard silicon-avalanche TVS; higher leakage (~5μA), higher capacitance (15pF), lower ESD rating (±12kV air). | Acceptable for cost-sensitive, non-high-speed applications where 5pF and ±15kV are not mandatory. | Choose SMAJ2.8A only if board layout allows longer ground paths and signal bandwidth ≤10MHz; SLVG2.8.TCT offers superior high-frequency performance. |
Compared with SLVE2.8.TCT and SMAJ2.8A, SLVG2.8.TCT delivers optimized unidirectional clamping with lowest capacitance and highest ESD immunity - making it the preferred choice for 3.3V high-speed interfaces where signal fidelity and robustness are co-prioritized.
Availability
SLVG2.8.TCT is available at Aetrix Electronics and suitable for Ethernet transceivers, laser diode drivers, and portable instrumentation requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for SLVG2.8.TCT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Semtech Corporation is a U.S.-based semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
The SLVG2.8.TCT belongs to Semtech's EPD TVS™ family, engineered specifically for low-voltage, high-speed interface protection where traditional avalanche diodes fail - targeting Ethernet, telecom, and portable electronics.
FAQ
What is the primary function of the SLVG2.8.TCT in circuit protection?
The SLVG2.8.TCT functions as a unidirectional transient voltage suppressor that diverts ESD and surge currents away from sensitive downstream ICs. Its EPD structure enables precise 2.8V standoff with low leakage and capacitance, making SLVG2.8.TCT ideal for protecting 3.3V I/O lines without compromising signal integrity or power efficiency.
How does the SLVG2.8.TCT differ from the SLVE2.8.TCT?
The SLVG2.8.TCT is unidirectional and protects one signal line with anode-to-cathode orientation, while SLVE2.8.TCT is bidirectional and supports either single-line bidirectional or dual-line differential protection. SLVG2.8.TCT has asymmetric IV characteristics and cannot replace SLVE2.8.TCT in bidirectional applications - SLVG2.8.TCT requires correct polarity alignment during placement.
Can SLVG2.8.TCT be used for differential mode protection?
No - SLVG2.8.TCT is designed exclusively for common-mode unidirectional line protection. Differential mode protection requires bidirectional devices like SLVE2.8.TCT or dedicated differential TVS arrays. Using SLVG2.8.TCT in differential configurations risks incomplete clamping and potential IC damage during polarity-reversing transients.
What is the significance of the "flow-thru" pinout in SLVG2.8.TCT?
The flow-thru pinout (pins 2→3 in series along the signal path) minimizes parasitic inductance in the protection loop. This reduces voltage overshoot during fast ESD events (e.g., 8/20μs), ensuring SLVG2.8.TCT clamps closer to its specified VC value - critical for safeguarding modern low-voltage CMOS ICs with tight absolute maximum ratings.
Is SLVG2.8.TCT compliant with automotive or industrial environmental standards?
SLVG2.8.TCT meets IEC 61000-4-2 (ESD), -4 (EFT), and -5 (lightning) immunity requirements and operates across –55°C to +125°C junction temperature. While not AEC-Q200 qualified, its construction (UL 94V-0 mold compound, SOT-143 reliability) supports industrial and telecom use; automotive deployment requires additional system-level validation beyond SLVG2.8.TCT's base specifications.
SLVG2.8.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- TO-253-4, TO-253AA
- Series:
- SLV
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 2.8V (Max)
- Voltage - Breakdown (Min):
- 3V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 24A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 50pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143
SLVG2.8.TCT FAQ
1.How can I place an order for SLVG2.8.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for SLVG2.8.TCT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SLVG2.8.TCT reliable?
The price and inventory of SLVG2.8.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLVG2.8.TCT is usually 5 days.
3.What payment methods are accepted for SLVG2.8.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLVG2.8.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SLVG2.8.TCT?
SLVG2.8.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SLVG2.8.TCT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SLVG2.8.TCT?
For technical support, including SLVG2.8.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLVG2.8.TCT requirements.
6.How does Aetrix verify that SLVG2.8.TCT is sourced from the original manufacturer or authorized distributors?
All SLVG2.8.TCT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SLVG2.8.TCT meets industry standards.
7.What is the process for return or replacement of SLVG2.8.TCT?
All SLVG2.8.TCT units undergo pre-shipment inspection (PSI). If there is an issue with SLVG2.8.TCT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SLVG2.8.TCT part is unused and in its original packaging.
Return procedure for SLVG2.8.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SLVG2.8.TCT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
